<p>Hello, thank you for the report. I am not an expert on the ndb_redis module, but I did a quick check.  There were some bugfixes (e.g.  <a class="commit-link" data-hovercard-type="commit" data-hovercard-url="https://github.com/kamailio/kamailio/commit/b4db01f09ca646ef1a6473a8c66ccf7120537b53/hovercard" href="https://github.com/kamailio/kamailio/commit/b4db01f09ca646ef1a6473a8c66ccf7120537b53"><tt>b4db01f</tt></a>) done related to the redis_exec PV topic, which might be the error you are seeing here as well. This fix is not included in the 4.4. branch anymore, as this is end of life. Can you update to one of the latest supported versions from the 5.1 or 5.2 branch?</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/kamailio/kamailio/issues/1853#issuecomment-464504255">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AF36ZQ54zy-UEZnbXg2CZDpUoALFbr7Fks5vObocgaJpZM4a9-5R">mute the thread</a>.<img src="https://github.com/notifications/beacon/AF36Ze8uEG4NZRWR2aTIZ9XoLqIoerOMks5vObocgaJpZM4a9-5R.gif" height="1" width="1" alt="" /></p>
<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/kamailio/kamailio","title":"kamailio/kamailio","subtitle":"GitHub repository","main_image_url":"https://github.githubassets.com/images/email/message_cards/header.png","avatar_image_url":"https://github.githubassets.com/images/email/message_cards/avatar.png","action":{"name":"Open in GitHub","url":"https://github.com/kamailio/kamailio"}},"updates":{"snippets":[{"icon":"PERSON","message":"@henningw in #1853: Hello, thank you for the report. I am not an expert on the ndb_redis module, but I did a quick check.  There were some bugfixes (e.g.  b4db01f09ca646e) done related to the redis_exec PV topic, which might be the error you are seeing here as well. This fix is not included in the 4.4. branch anymore, as this is end of life. Can you update to one of the latest supported versions from the 5.1 or 5.2 branch?"}],"action":{"name":"View Issue","url":"https://github.com/kamailio/kamailio/issues/1853#issuecomment-464504255"}}}</script>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/kamailio/kamailio/issues/1853#issuecomment-464504255",
"url": "https://github.com/kamailio/kamailio/issues/1853#issuecomment-464504255",
"name": "View Issue"
},
"description": "View this Issue on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>